baber/WOPTO huggingface dataset:
Patent CA-2157229-C (CA)
Inventor: YOSHIDA NAOKI
IPC: B41J15/00
Filed: 1995-08-30
Granted: 1999-07-27
Abstract: This invention relates to a printer where its structure is simple, its positioning accuracy is high and colour prints of excellent picture quality can be obtained.          A recording unit (printer) consisting of a platen roller, a roll type recording paper which is pulled and fed on the said platen roller and a recording head, is characterized in that it includes a recording paper pull-feed mechanism which comprises a clamp opening/closing unit for catching the end of the roll type recording paper and for making a linear reciprocation movement for designated cycles at each recording in accordance with the length of the main run direction being recorded at one time, and also a roll paper drum that can be turned in reverse direction for pulling back the recording paper when the roll type recording paper reciprocates during the designated cycles.
Patent CA-2158195-C (CA)
Inventor: SONG JOO H
IPC: A23G4/02
Filed: 1995-09-13
Granted: 1999-01-05
Abstract: A method is provided for the manufacture of chewing gum.  The method uses a continuous high efficiency mixer which is configured so that chewing gum is compounded from gum base using a mixing L/D of less than about 6.
Patent CA-2161136-C (CA)
Inventor: MCCLELLAND ALAN
IPC: C12N15/87
Filed: 1994-08-11
Granted: 2001-07-31
Abstract: An adenovirus wherein the adenovirus fiber protein includes a ligand which is specific for a receptor located on a desired cell type. The adenovirus may have at least a portion of the adenovirus fiber protein removed and replaced with a ligand which is specific for a receptor located on a desired cell type, or the adenovirus may include a fusion protein of the adenovirus fiber protein and the ligand. Such an adenovirus may also include a gene(s) encoding a therapeutic agent(s) and may be "targeted" in order to deliver such gene(s) to a desired cell type.
Patent CA-2162170-C (CA)
Title: Process for the preparation of azamacrocylcic or acyclic aminophosphonate ester derivatives
Inventor: KIEFER GARRY E
IPC: C07F9/38
Filed: 1994-05-04
Granted: 2005-03-15
Abstract: A novel process for the preparation of azamacrocyclic or acyclic aminophosphonate ester derivatives is disclosed. The process concerns the reaction of an appropriate azamacrocyclic or acyclic primary or secondary amine with trialkyl phosphite and paraformaldehyde.
Patent CA-2162253-C (CA)
Inventor: SCHULTZ ROSE ANN
IPC: C08G59/02
Filed: 1995-03-03
Granted: 1998-06-30
Abstract: Glycidyl esters are prepared to have low chlorine, chloride, sodium and potassium contamination and a thixotropic index greater than 3.0 by a process that comprises reacting carboxylic mono- or dimer acids with glycidyl alcohols in a molar ratio of 1 to 0.9-2.0 using carbodiimide as the acylating agent and a pyridine-type catalyst. The pyridine-type catalyst is removed by strongly acidic ion exchange.
Patent CA-2162591-C (CA)
Inventor: HEALY DAVID MICHAEL
IPC: B32B3/08
Filed: 1994-05-18
Granted: 2004-10-05
Abstract: A self-adhesive laminate which can be used as a wound dressing (D) in which a thin transparent film (10) has a layer (12) of skin adhesive on one side, shielded before use by a cover sheet (14). During application to a patient, the film (10) is held stable and made easily handled by having a backing sheet (16) with a lower tack than the film-to-skin adhesive (12). The cover sheet (14) and the backing sheet (16) are linked by a hinge strip (18) adhered over one edge of the dressing (D). To apply the dressing (D) the cover sheet (14) is peeled off and left hanging by the hinge (18) while the film (10) is adhered to the patient. Then the cover sheet (14) is pulled to remove the backing sheet (16) to which the cover sheet (14) is attached by the hinge (18). The invention provides easily applicable contamination-free delicate sterile dressing films for wounds.
Patent CA-2167754-C (CA)
Inventor: KOBETSKY ROBERT G
IPC: B23P19/08
Filed: 1996-01-22
Granted: 1999-09-21
Abstract: An apparatus for assembling a fastener blank to a washer including a mechanism for supplying washers in a sequential manner from unoriented bulk to a desired oriented position and a mechanism for supplying fastener blanks having a shank and a head to a desired oriented position. The apparatus further includes an adjustable fastener driving mechanism for gripping individual fasteners by the shank from the fastener supply mechanism and inserting the fastener shank within an aperture of a respective washer with a very high degree of accuracy and low rate of rejection to accommodate fastener blanks having mis-shaped heads or heads which are off-center or off square with respect to the shank.
Patent CA-2167887-C (CA)
Inventor: DEXTER JEFFREY L
IPC: F26B23/02
Filed: 1996-01-23
Granted: 2001-04-10
Abstract: Drying of particulate materials, such as wood chips (wafers/strands) for the manufacture of oriented structural board, as well as bark and the like.  The method is characterized by advancing wafers in random array and superposed and without contact above a planar surface; forcing heated air upwardly through spaced apart holes defined in the stationary planar surface and through the random array of advancing wafers, while evacuating heated air and accumulated moisture above the advancing wafers. The method is distinguished by lateral shielding during forcing of heated air above the planar surface, so as to inhibit "blow-holes" among the drying wafers.
Patent CA-2171586-C (CA)
Inventor: SHIGEMORI YOSHIHIRO
IPC: G01J3/46
Filed: 1996-03-12
Granted: 2000-06-13
Abstract: The colorimetric value at a specified temperature is determined by measuring thecolorimetric value of a colored material sample at an arbitrary temperature using a color meter such as a spectrophotometer, colorimeter, or densitometer, and by correcting the measured colorimetric value on the basis of the change in colorimetric value with temperature, which change in colorimetric value is computed from the difference in colorimetric values observed on a single colored material sample under at a minimum of two different temperatures. When a spectrophotometer is applied, the spectral reflectance or the spectral transmittance of the colored material sample is measured. On the other hand, spectral reflectance or spectral transmittance is measured in advance for a dye or pigment at a minimum of two different temperatures. The difference (.DELTA.K) of absorption coefficient (K), the difference (.DELTA.S) in the scattering coefficient (S), and the difference (.DELTA.D) in absorbance (D) at each wavelength are computed from the preliminarily observed spectral reflectance or spectral transmittance. The spectral transmittance or spectral reflectance observed at an arbitrary temperature is corrected to define the colorimetric value at a specified temperature using the obtained values of K, S, and D. The method allows the determination of the colorimetric value of a single or a mixed color at a high level of precision using a simple operation under arbitrary temperature conditions without generating observation differences caused by temperature change.
Patent CA-2173634-C (CA)
Title: Tree harvester provided with a ratatable worktable
Inventor: GAUDREAULT PIERRE
IPC: A01G23/083
Filed: 1996-04-09
Granted: 2002-02-26
Abstract: A tree harvester provided with a rotatable worktable assembly is disclosed herein. The tree harvester includes a movable frame, a worktable assembly rotatably mounted to the movable frame and an upper frame rotatably mounted to the worktable assembly. The upper frame is provided with an articulated boom that includes a feller/grapple head. The worktable assembly includes a tree delimbing mechanism, a tree cutting mechanism and a log stacker. The operation of the worktable is advantageously automated so that the operator can use the boom while the worktable is processing a tree. The position of the worktable between the movable frame and the upper frame makes the tree harvester more compact than conventional tree harvester, while the independent rotation of the worktable assembly and of the upper frame with respect to the movable frame increases the flexibility of operation of the tree harvester.
Patent CA-2176827-C (CA)
Title: Use of polyethylene oxide-containing polymeric quaternary ammonium compounds in pharmaceutical compositions
Inventor: PARK JOONSUP
IPC: A01N33/12
Filed: 1995-09-19
Granted: 1999-04-13
Abstract: PEO-containing quatemary ammonium compounds have good broad spectrum antimicrobia1 activity. These compounds are useful in pharmaceutical compositions as preservatives and in contact lens care compositions as preservatives and/or disinfectants.
Patent CA-2179870-C (CA)
Title: Multimedia communication system and communicating apparatus
Inventor: SUZUKI TOSHIAKI
IPC: H04L12/14
Filed: 1996-06-25
Granted: 2003-12-02
Abstract: A multimedia communication system is constructed by a terminal device for user which is used for the user to receive information, a terminal device for information provider which is used by an information provider to provide the information to the user, a network to which each of the terminal devices  is connected, and a reservation unit for circulating a reservation table to select and reserve the information that is received by the user and a reception time between the terminal device for information provider and the terminal device for user.
Patent CA-2188480-C (CA)
Title: computer trackball
Inventor: BLONDER GREG E
IPC: G06F3/033
Filed: 1996-10-22
Granted: 2000-05-30
Abstract: A computer trackball comprises a transparent outer sphere inside of which is disposed a second inner sphere. The outer diameter of the inner sphere is a little bit smaller than the inner diameter of the outer sphere. Disposed on the outer surface of the inner sphere, at one "end" thereof is a logo or other graphical image. The inner sphere tends to maintain itself in a predetermined orientation ? e.g., with the graphical image pointing directly "up" relative to the keyboard or other housing in which the trackball is held ? notwithstanding rotation of the outer sphere by a user in the course of operating the trackball.
Patent CA-2193517-C (CA)
Inventor: WINKLER BRUCE L
IPC: A63B69/36
Filed: 1996-12-19
Granted: 1999-08-24
Abstract: An easy to use, self-adjusting device for creating a visual representation of the region within which a hockey puck must travel to score a goal from any position in front of a goal has two retractable cords which are attached at one end to a hockey stick and at the other to retractable spring take-up reels. The reels are releasably attached to the goal by a hook and loop fastener. Each cord extends from the reel to an elastic bungee-cord-type band that extends to a releasable clip connected to a removable bracket on the hockey stick. The cords are extended andretracted from the reel with movement of the hockey stick away from the goal to visually define the region of puck travel, and to permit on-the-fly demonstration of possible puck trajectories to both an offensive player and a goaltender, aiding these students in developing their hockey playing skills.
Patent CA-2195902-C (CA)
Inventor: CLIFFORD TODD W
IPC: F24C15/36
Filed: 1997-01-24
Granted: 1999-12-14
Abstract: The cooking grill has a moisture-insensitive flame detector capable of accurately determining the presence or absence of flame in the presence of moisture disposed adjacent to the burner. It also provides a more reliable ignition device and will relight the grill if the flame is blown out. The cooking grill also has an automatic shut-off to protect against the user forgetting to turn off the gas. It provides a lock-out system which prevents unauthorized use by individuals, such as children. Finally, the temperature in a grill or other cooking device can be controlled by cycling the burner on and off through microprocessor commands.
Patent CA-2199002-C (CA)
Inventor: EPPSTEIN JONATHAN A
IPC: A61B5/1477
Filed: 1996-08-29
Granted: 1999-02-23
Abstract: Méthode pour rendre la peau plus perméable à un analyte aux fins du diagnostic ou à un médicament à des fins thérapeutiques, qui fait appel à une technique de perçage d'un micropore et, facultativement, à l'énergie sonique et à un activateur chimique. Si l'on a recours à l'énergie sonique, celle-ci peut être modulée de différentes façons : modulation de fréquence, modulation d'amplitude, modulation de phase ou combinaisons de types de modulation. Pour percer un micropore, a) on enlève la couche cornée en chauffant rapidement en un point l'eau de façon à vaporiser l'eau et à éroder ainsi les cellules; b) on perfore la couche cornée avec une micro-lancette calibrée de façon à pratiquer un micropore pouvant atteindre environ 1 000  m de diamètre; c) on enlève la couche cornée en concentrant un faisceau bien focalisé d'énergie sonique sur la couche cornée; d) on perfore hydrauliquement la couche cornée avec un jet ou un liquide à haute pression pour former un micropore pouvant atteindre environ 1 000  m de diamètre, ou e) on perfore la couche cornée avec de brèves impulsions d'énergie électrique pour former un micropore pouvant atteindre environ 1 000  m de diamètre. Un colorant avec un maximum d'absorption correspondant à la longueur d'onde d'une source de lumière pulsée peut être absorbée dans la couche cornée pour concentrer l'énergie de la source de lumière pulsée et faciliter l'ablation de la couche cornée. Ou encore on peut mettre la couche cornée en contact avec un fil sous tension.
Patent CA-2203114-C (CA)
Inventor: MOLL HANS-CHRISTER
IPC: H01L31/0203
Filed: 1995-10-19
Granted: 2006-01-24
Abstract: In manufacturing an encapsulated optocomponent, the optocomponent is embedded in a plastics material. The optocomponent has guide grooves on one of its surfaces in which guide pins are to extend so that the encapsulated optocomponent will obtain an optical interface of standard type. For the encapsulating operation guide-pins are placed in a mould cavity in a mould half and the optocomponent is placed in the cavity in the mould, so that the guide pins are engaged in the guide grooves and are accurately inserted therein. To achieve this effect, a resilient or elastic force such as from plunger is applied to the other side of the optocomponent, so that it is pressed with some force against the guide pins. The cavity in the mould is then closed by placing a second mould half on top thereof after which the encapsulating material can be introduced in the closed cavity in the mould. The elastic force can also be obtained directly from a leadframe, to which the optocomponent is attached for electrical connection, or from a small elastic part, placed in, the cavity in the mould, this part then remaining in the capsule.
Patent CA-2205197-C (CA)
Inventor: PEYROVIAN M JAVAD
IPC: H04N7/173
Filed: 1997-05-13
Granted: 2001-04-03
Abstract: Bandwidth is increased and noise may be reduced in a shared hybrid fiber-coax transmission system (10) by digitally modulating upstream information onto a high frequency band (e.g., 750-1000 MHz) and thereafter digitally regenerating both the high frequency upstream information as well as a portion of the downstream information not used for broadcast video (i.e., the 500-750 MHz band).
Patent CA-2208759-C (CA)
Inventor: OKUDA TOSHIYUKI
IPC: D21H17/26
Filed: 1996-11-01
Granted: 2003-03-11
Abstract: The invention relates to a process to improve wet tensile strength as well as water-swelling property of a water-disintegrable sheet to be used as a wet wipe for cleaning in household.   A mixture of water-swelling or water-insoluble carboxymethyl cellulose and/or salt thereof having a degree of substitution - 0.30 - 0.60 and pH .gtoreq. 5.0 and water- dispersible fibers is subjected to a foliating step of a process to obtain the water-disintegrable sheet and, before or after the foliating step of the process, the mixture is added with a base.
Patent CA-2210666-C (CA)
Inventor: DEAN MICHAEL R
IPC: H01R24/44
Filed: 1997-07-16
Granted: 2001-02-06
Abstract: The present invention comprises a terminator which features an internal termination resistor and capacitor mounted on a substrate which is in electrical and mechanical communication with a center terminal pin at one end, and the connector body at the other end. The body of the terminator is grounded via the connection of the terminator to a cooperating connector.   The present invention includes a support insulator which protects the internal components of the terminator by preventing transmission of tensile, torsional, and bending stresses through the terminal into the termination chip assembly.  The stresses are absorbed by means of a supportive insulator which frictionally supports a textured section of the center terminal within the terminator.   The stresses typically occur during installation or removal of the terminator to or from a connector.  With the present invention it is possible to twist and bend the metal terminal of the terminator to the point of fracture without damaging the termination chip. Additionally, the performance of the terminator is improved since the connection from the substrate of the termination chip to the terminator body has been enhanced, thereby reducing the high levels of intermodulation distortion associated with prior art terminators.
Patent CA-2214238-C (CA)
Inventor: ANDERSON ARLEN
IPC: A01K29/00
Filed: 1997-08-29
Granted: 2012-01-03
Abstract: An animal feedlot management system is disclosed, wherein each feed delivery vehicle employed therein uses real-time virtual reality (VR) modelling and coordinate acquisition techniques supported upon an Internet-based (i.e., Cyberspace) communications platform in order to carry out various types of feedlot operations. Each feedlot vehicle has an on-board computer system which includes a VR  subsystem, for accessing a VR database maintaining information representative of a VR model of the feedlot and the objects present therein (eg., tagged animals, pens, alley ways, feedbunks, buildings, vehicles, etc.) The database is continually updated using information obtained from a global satellite-based positioning system (GPS), as well as of local information acquisition systems integrated therewith. Each VR subsystem is linked to a wireless digital communications network realized as a portion of the Internet, provided with feedlot Web site server. Each VR subsystem includes a stereoscopic display subsystem for stereoscopically viewing any portion of the VR feedlot model, including the driver's vehicle as it is being navigated through the feedlot in either a manned or unmanned mode of navigation during feedlot operations. Each feedlot computer system may also include a stereoscopic vision subsystem having a field of view along the navigational course of the remotely controlled vehicle.  The navigational courses of these remotely navigated vehicles can be preprogrammed in an orchestrated manner to avoid collisions and optimize the time and energy required to carry out feedlot operations, while reducing the operating cost of the feedlot as well as the number of employees required to support its operations.
Patent CA-2219598-C (CA)
Title: Field effect transistor and fabrication process thereof
Inventor: IWATA NAOTAKA
IPC: H01L21/338
Filed: 1997-10-29
Granted: 2001-10-23
Abstract: Using a mask opening a gate region, an undoped GaAs layer is selectively etched with respect to an undoped Al0.2Ga0.8As layer by dry etching with introducing a mixture gas of a chloride gas containing only chlorine and a fluoride gas containing only fluorine (e.g. BCl3 + SF6 or so forth).  By about 100% over-etching is performed for the undoped GaAs layer, etching (side etching) propagates in transverse direction of the undoped GaAs layer.  With using the mask, a gate electrode of WSi is formed.  Thus, a gap in a width of about 20 nm is formed by etching in the transverse direction on the drain side of the gate electrode.  By this, a hetero junction FET having reduced fluctuation of characteristics of an FET, such as a threshold value, lower a rising voltage and higher breakdown characteristics.
Patent CA-2221614-C (CA)
Title: Balloon loaded dissecting instruments
Inventor: HERMANN GEORGE D
IPC: A61F2/958
Filed: 1996-05-20
Granted: 2005-03-22
Abstract: Balloon loaded dissection devices with elongate balloons and a pushing member are disclosed for creating a tunnel alongisde an elongate vessel in the body. The devices may utilize an elongate balloon (16) of any suitable length which may be formed of an elastic or non-elastic material. The balloon (16) may be of double walled constriction and may be provided with a central lumen (17) which may receise a guide rod (20), scope (29) or other surgical instrument. The device may have a support tube (22) secured to the inner wall of the balloon (16) to provide columnar support for the apparatus. The support tube (22) receives the guide rod (20), scope (29) or other surgical instrument and may have a stop member (23) to translate pushing force applied to the guide rod (20) or scope (29) to pushing force on the apparatus. By using the guide rod or scope as a pushing member the apparatus may be advanced alongside the vessel it is desired to dissect free from attached tissue. A balloon cover (27) which may be elastic or resilient is provided to surround the balloon and facilitate compression of the balloon (16) after it is deflated.
Patent CA-2224949-C (CA)
Title: Concrete formwork with backing plates
Inventor: GRUTSCH GEORGE A
IPC: E04B2/86
Filed: 1997-12-16
Granted: 2002-08-20
Abstract: Foam forms for use in making a concrete wall are disclosed together with a method of making the forms.  The forms are stackable to form a cavity that receives the concrete.  Each form has two identical panels.  The panels are molded separately by first placing a structure, consisting of backing plates that will be along one side of the mold, connecting members that will be along the opposite side of the mold and an apparatus that connects the backing plates to the connecting members, in the mold.  The mold is then filled with foam which cures and produces a panel with the backing plates, connecting members and apparatus molded into the panel.  The molded panels are then shipped to the job site where the forms are assembled.          Each form is assembled as follows: The connecting members on one panel are interconnected, by tieing means, to the connecting members on a second panel to provide a form.
Patent CA-2227098-C (CA)
Inventor: LANG IAN GERALD
IPC: F26B13/18
Filed: 1998-01-16
Granted: 2001-03-13
Abstract: A drying cylinder comprises a cylindrical shell with head members at either end and is mounted for rotation about its central longitudinal axis.  A gas fired burner assembly is mounted in the interior of the cylinder and comprises a plurality of burner segments which transmit heat to the shell by infrared radiation.          The heat output of the burner segments are controllable as an assembly in unison or individually.
Patent CA-2230500-C (CA)
Title: Power converting apparatus and power converting method
Inventor: HIRANO KOICHI
IPC: H02M5/27
Filed: 1996-09-04
Granted: 2007-01-30
Abstract: The present invention relates to a power converting apparatus and a power converting method for driving a high voltage AC motor at a variable speed. In the present invention, a power converting apparatus of a multiple three- phase pulse width modulation cycloconverter system for driving a high voltage AC motor at a variable speed is used, and bidirectional semiconductor switches are controlled so that voltages of AC outputs to be outputted to single-phase AC terminals of three-phase/single-phase pulse width modulation cycloconverters may have a same phase in each of units but electric angles of basic wave voltage phases may be different by 120 degrees from each other among the three units to drive a high voltage AC motor.</SDO AB>